Error
Error Code:
3018
MySQL Error 3018: FULLTEXT Index on Subquery
Description
MySQL Error 3018, 'Cannot create FULLTEXT index on materialized subquery', occurs when you attempt to apply a FULLTEXT index to a column that is part of a materialized subquery. This limitation arises because MySQL cannot directly index temporary tables or views derived from subqueries that require materialization, preventing the creation of specialized FULLTEXT indexes on such transient data structures.
Error Message
Cannot create FULLTEXT index on materialized subquery
Known Causes
3 known causesDirect Indexing on Subquery Result
You are attempting to create a FULLTEXT index directly on a column that is the result of a materialized subquery's output, which MySQL does not support.
FULLTEXT on View with Subquery
This error can occur when trying to create a FULLTEXT index on a column within a view whose definition relies on a complex subquery that MySQL materializes.
Table Creation from Materialized Subquery
Creating a new table using `CREATE TABLE ... SELECT` where the `SELECT` statement involves a materialized subquery, and then attempting to add a FULLTEXT index to it.
Solutions
Coming SoonDetailed step-by-step solutions for this error are being prepared. In the meantime, try these general troubleshooting tips:
General Troubleshooting Tips
- Check the error message carefully for specific details
- Review recent changes that might have caused the error
- Search for the exact error code in the official documentation
- Check log files for additional context
- Try restarting the application or service